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Freshwater Aquarium Heaters & Thermometers

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Fluval P10 Pre-Set Aquarium Fish Heater slide 1 of 9
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Fluval P10 Pre-Set Aquarium Fish Heater slide 1 of 9
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Fluval P10 Pre-Set Aquarium Fish Heater

Rated 4.2 out of 5 stars
22
$22.80 Chewy Price
$33.72 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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OASE Indoor Aquatics HeatUp 300 Adjustable Fish Heater slide 1 of 7
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OASE Indoor Aquatics HeatUp 300 Adjustable Fish Heater slide 1 of 7
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OASE Indoor Aquatics HeatUp 300 Adjustable Fish Heater slide 1 of 7
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OASE Indoor Aquatics HeatUp 300 Adjustable Fish Heater

Rated 5 out of 5 stars
4
$40.16 Chewy Price
$56.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Underwater Treasures Seapora Volt-Control Titanium Grounding Probe

Rated 5 out of 5 stars
1
$12.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Fluval M 200Watt Submersible Fish Heater slide 1 of 8
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Fluval M 200Watt Submersible Fish Heater

Rated 4.3 out of 5 stars
27
$39.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Fluval E200 Electronic Fish Aquarium Heater, 200-watt

Rated 4 out of 5 stars
4
$69.99 Chewy Price
$71.07 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Tetra HT55 Submersible Aquarium Heater & Electronic Thermostat, 200-watt

Rated 4 out of 5 stars
42
$27.97 Chewy Price
$34.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Penn-Plax Aquarium LED Display Heater, 300W

Rated 2.4 out of 5 stars
5
$32.99 Chewy Price
$64.99 List Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 20 and Jul 24

Lifegard Led Digital Thermometer, Blue

Rated 4.4 out of 5 stars
5
$34.49 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 22 and Jul 27

Hydor Theo Shatterproof Aquarium Heater, 25-watt

Rated 3.5 out of 5 stars
45
$26.88 Chewy Price
$35.95 List Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 23 and Jul 27

Fluval Sea Aquarium Hydrometer, Medium

Rated 2.5 out of 5 stars
6
$14.64 Chewy Price
$14.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics Biostyle Thermo 30 Fish Heater, Dark Blue

Rated 1 out of 5 stars
1
$24.99 Chewy Price
$88.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquael Platinium Temperature Control Aquarium Heater with Electronic Thermostat, 300W

Rated 4.6 out of 5 stars
23
$37.05 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Aqueon Mini Aquarium Heater, 2-gal, 5 watt

Rated 3.7 out of 5 stars
92
$14.45 Chewy Price
$16.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Underwater Treasures Easy Read Fish Thermometer

Rated 2.9 out of 5 stars
14
$10.69 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Zoo Med Digital Aquarium Thermometer

Rated 3.4 out of 5 stars
18
$8.99 Chewy Price
$10.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop Submersible Glass Aquarium Heater, 300-watt

Rated 3.7 out of 5 stars
94
$32.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics HeatUp 400 Adjustable Fish Heater

Rated 4.7 out of 5 stars
3
$57.99 Chewy Price
$62.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Penn-Plax 10W Plastic Safe Aqiuarium Heater, 4-in

Rated 3.2 out of 5 stars
6
$25.99 Chewy Price
$27.99 List Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 20 and Jul 24

JBJ Aquarium Arctica Titanium Aquarium Chiller, 1/4-hp

Rated 5 out of 5 stars
3
$737.08 Chewy Price
$965.22 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 24 and Jul 27

OASE Indoor Aquatics Filtosmart Thermo 200 External Fish Heater

Rated 4 out of 5 stars
4
$163.89 Chewy Price
$219.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Zoo Med BettaTherm Mini Size Betta Bowl Heater

Rated 2.3 out of 5 stars
11
$15.70 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Seapora Quartz Aquarium Heater, 100-watt

Rated 4 out of 5 stars
7
$21.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics HeatUp 100 Adjustable Fish Heater

Rated 4 out of 5 stars
4
$41.12 Chewy Price
$42.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Seapora Mini Desktop Aquarium Heater, 30-watt

Rated 2 out of 5 stars
1
$13.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics Biostyle Thermo 50 Fish Heater, White

$31.24 Chewy Price
$98.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

biOrb Aquarium Heater Pack

Rated 5 out of 5 stars
1
$47.99 Chewy Price
$52.99 List Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 20 and Jul 26

OASE Indoor Aquatics HeatUp 200 Adjustable Fish Heater

Rated 4.7 out of 5 stars
3
$48.82 Chewy Price
$48.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

JBJ Aquarium Nano Arctica E-Chiller, White/Black, 10-gal

Rated 4 out of 5 stars
1
$300.00 Chewy Price
($30.00/gl) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Jul 24 and Jul 27

Zoo Med Aqua Cool Aquarium Cooling Fan

Rated 2.3 out of 5 stars
7
$23.59 Chewy Price
$45.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aquatop Floating Glass Thermometer with Suction Cup Mount

Rated 1 out of 5 stars
1
$3.99 Chewy Price
$8.46 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics Bioplus Thermo 200 Internal Fish Heater

Rated 5 out of 5 stars
2
$84.99 Chewy Price
$109.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Bioplus Thermo 100 Internal Fish Heater

$84.00 Chewy Price
$99.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Biostyle Thermo 30 Fish Heater, White

Rated 1 out of 5 stars
1
$70.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Biomaster Thermo 350 External Fish Heater

Rated 4.7 out of 5 stars
21
$319.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Bioplus Thermo 50 Internal Fish Heater

Rated 3 out of 5 stars
2
$65.59 Chewy Price
$94.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Filtosmart Thermo 300 External Fish Heater

Rated 3 out of 5 stars
2
$226.99 Chewy Price
$249.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Category

Brand

7 Brands are shown below

Aquarium Type

Fish Type

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